ATMEL Flash and EEPROM write cycle endurance

Started by Tom Becker May 26, 2005
FYI, according to engineers at an ATMEL seminar Tuesday, the quoted
write cycle endurances of Flash memory in the current AVR parts (in
particular, the ATMega169 was being discussed but the BX-24p's
ATMega8535 is included) of 10,000 cycles, and 100,000 cycles for EEPROM,
are very conservative.

Typical endurance for Flash is 100,000 cycles and even one million
cycles are possible (100 times the guaranteed endurance); EEPROM
experience is similar, they say. Tom
Tom Becker
--... ...--
GTBecker@GTBe... www.RighTime.com
The RighTime Clock Company, Inc., Cape Coral, Florida USA
+1239 540 5700


This is good news cause I download a bunch of times per programming
session as I work out nuances in my code or related hardware.
I did the math one time for spending 8 hours a day and downloading
once per minute. I don't have the numbers handy as to how long life of
eeprom was expected to be. But with your news I can live longer...

Don Lewis --- In basicx@basi..., "Tom Becker" <gtbecker@r...> wrote:
> FYI, according to engineers at an ATMEL seminar Tuesday, the quoted
> write cycle endurances of Flash memory in the current AVR parts (in
> particular, the ATMega169 was being discussed but the BX-24p's
> ATMega8535 is included) of 10,000 cycles, and 100,000 cycles for EEPROM,
> are very conservative.
>
> Typical endurance for Flash is 100,000 cycles and even one million
> cycles are possible (100 times the guaranteed endurance); EEPROM
> experience is similar, they say. > Tom >
> Tom Becker
> --... ...--
> GTBecker@R... www.RighTime.com
> The RighTime Clock Company, Inc., Cape Coral, Florida USA
> +1239 540 5700